Roma have confirmed the €3.75 million signing of USA international Michael Bradley from Serie A rivals Chievo. The 24-year-old has penned a four-year contract that ties him to the Giallorossi until 30 June 2016, Roma announced in a statement on their website. Bradley, who has won 69 caps for his country, joined Chievo last summer from Borussia Monchengladbach and had one year left on his contract with the Verona outfit. As part of the deal, Roma\'s Romanian midfielder Adrian Stoian, 21, has joined Chievo for the upcoming campaign.